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Season guide

Octonauts: Season 1

50 episodes Premiered Oct 5, 2010 Updated Jul 18, 2026
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Episodes

S1·E1

The Undersea Storm

Oct 5, 2010 · 11 min

As a huge storm heads towards the headquarters, the Octonaut crew hurriedly goes into preparation. However, Kwaji, who went out to test drive the expedition ship, is unable to retu

S1·E2

The Giant Squid

Oct 11, 2010 · 11 min

The Octonauts roam the oceans in search of adventure and fun. Whether it's a perilous voyage to the bottom of the sea or the piratey pursuit of a giant squid, the Octonauts leap in

S1·E3

The Great Algae Escape

Oct 13, 2010 · 11 min

Captain Barnacles and his crew must catch a runaway Octopod, when it is hijacked by a group of crustaceans trying to escape their algae-infested waters.

S1·E4

The Walrus Chief

Oct 7, 2010 · 11 min

When Peso's precious medical kit is taken, Barnacles and Kwazii sneak into a dangerous walrus colony to get it back, disguised as a walrus.

S1·E5

The Flying Fish

Oct 8, 2010 · 11 min

When a school of flying fish accidentally make off with a rare book belonging to Professor Inkling, the Octonauts rig up the Gup B to fly after them and get it back.

S1·E6

The Narwhal

Oct 26, 2010 · 11 min

While exploring the Arctic, the Octopod gets trapped in the ice. Only Barnacles's skillful navigation, and the help of a friendly Narwhal, can get them free.

S1·E7

The Monster Map

Oct 19, 2010 · 11 min

The Octonauts follow an old map to what Kwazii believes is treasure guarded by a sea monster but, instead, they meet a playful Octopus with all kinds of surprising abilities.

S1·E9

The Albino Humpback Whale

Oct 21, 2010 · 11 min

The Octonauts help out an Albino Humpback Whale with a nasty sunburn.

S1·E10

The Remipedes

Oct 14, 2010 · 11 min

When Shellington gets lost in a dark sea cave, he gets unexpected assistance from some blind Remipedes.

S1·E11

The Orcas

Oct 12, 2010 · 11 min

When a huge Orca whale becomes stranded on a beach, Captain Barnacles Bear and the Octonauts devise a plan to pull him back into the water, with some help from a group of tunnellin

S1·E12

The Blobfish Brothers

Oct 18, 2010 · 11 min

The Octonauts must evacuate sea creatures before an underwater volcano erupts, but there's one creature that won't budge: a slow moving, gelatinous Blobfish.

S1·E13

The Decorator Crab

Nov 5, 2010 · 11 min

When important objects go missing from their ship, the Octonauts stake out the thief, who turns out to be a decorator crab stealing their things to decorate his shell.

S1·E14

The Whale Shark

Oct 4, 2010 · 11 min

When Kwazii's Gup-B breaks down in a storm, not even brave Captain Barnacles can save him alone. Fortunately, a chain of reef lobsters lends a hand - and some claws.

S1·E15

The Cookiecutter Sharks

Dec 13, 2010 · 11 min

Some mysterious holes that keep appearing in the Octonauts' equipment turn out to be the work of cookiecutter sharks whose bioluminescence initially made them invisible against the

S1·E16

The Jellyfish Bloom

Dec 16, 2010 · 11 min

When Shellington gets trapped in the middle of a massive Jellyfish bloom, it's up to the Octonauts to rescue him.

S1·E17

The Speedy Sailfish

Oct 15, 2010 · 11 min

When all the Gups go out of control, Barnacles and Kwazii leap onto the backs of some speedy Sailfish to round them up.

S1·E18

The Vampire Squid

Dec 8, 2010 · 11 min

Peso must gather all his courage when he travels deep down to the very bottom of the ocean, the Midnight Zone, and encounters the mysterious Vampire Squid.

S1·E19

The Humuhumunukunukuapua'a

Feb 10, 2011 · 11 min

When the Octopod's waterworks are flooded with frightened Humuhumu fish, the Octonauts have to find a way to flush them out.

S1·E20

The Giant Spider Crab

Feb 11, 2011 · 11 min

The octonauts help a 100 year old spider crab which has got its leg trapped in a giant clam whilst en route to its own 100th birthday party. It turns out that Kwazii's afraid of sp

S1·E21

The Giant Kelp Forest

Oct 22, 2010 · 11 min

When Kwazii's favorite sub, the Gup B, goes missing, the Octonauts journey into a mysterious kelp forest to find it, meeting strange and interesting creatures along the way.

S1·E22

The Hermit Crabs

Nov 2, 2010 · 11 min

When Captain Barnacles Bear and most of the crew are unable to return to base, it's up to Peso and Tweak to remove a stuck hermit crab from its shell.

S1·E23

The Hungry Pilot Fish

Dec 7, 2010 · 11 min

The Octonauts are chased by a whitetip shark only to discover all it really needed was a pilot fish to clean its teeth, and it just so happens that they have just met a lonely pilo

S1·E24

The Beluga Whales

Dec 6, 2010 · 11 min

The Octonauts lead a pod of Beluga Whales stuck under the pack ice to safety by getting them to follow Peso while he's playing the same tune as the Beluga's song on his xylophone.

S1·E25

The Snot Sea Cucumber

Oct 29, 2010 · 11 min

After an underwater tremor, an injured sea cucumber named Slippy gets loose on the Octopod, so to let her breathe, they flood the ship!

S1·E26

The Giant Whirlpool

Nov 1, 2010 · 11 min

The Octonauts race against time to rescue Tweak's pal, a leatherback sea turtle who's caught in a fast-moving ocean current that's sucking it into a whirlpool.

S1·E27

The Slime Eels

Jan 26, 2011 · 11 min

Kwazii covets the treasure in a sunken pirate ship, but its protected by slime squirting Slime Eels.

S1·E28

The Arctic Orcas

Jan 25, 2011 · 11 min

When Captain Barnacles and Peso get lost in the icy Arctic sea, a pod of Orcas help the Octonauts find them.

S1·E29

The Lost Sea Star

Oct 20, 2010 · 11 min

When the Octonauts find an unusual Sea Star on the beach, they search the ocean from top to bottom (literally) to help find its home.

S1·E30

The Giant Jelly

Dec 10, 2010 · 11 min

The Octonauts must rescue Peso when he gets trapped inside a giant ctenophore.

S1·E31

The Snapping Shrimp

Oct 28, 2010 · 11 min

The Octonauts encounter a snapping shrimp – a small creature that uses its claws to make a big, and stunning, noise.

S1·E32

The Kelp Forest Rescue

Nov 4, 2010 · 11 min

When Peso's little brother, Pinto, comes to visit, he's more interested in being a pirate than a medic – at least until he accompanies Peso on a mission to rescue Dashi and Shellin

S1·E33

The Enormous Elephant Seal

Jan 27, 2011 · 11 min

When Peso and the Octonauts aid an enormous Elephant Seal, he overstays his welcome in the Octopod.

S1·E34

The Sardine School

Jan 28, 2011 · 11 min

The Octonauts must work together as a team to help a lost sardine find her school.

S1·E35

The Eel Ordeal

Feb 1, 2011 · 11 min

The Octonauts travel up a treacherous river to help a young migrating eel on her difficult journey.

S1·E36

The Dolphin Reef Rescue

Jan 31, 2011 · 11 min

When the Octonauts all pitch in to help save a sick coral reef, they get some unexpected help from a pod of playful dolphins.

S1·E37

The Pirate Parrotfish

Feb 4, 2011 · 11 min

When the Octonauts go on a pirate treasure hunt, Kwazii meets a Parrotfish.

S1·E38

The Electric Torpedo Rays

Feb 7, 2011 · 11 min

Some electric torpedo rays give the Octopod a jump-start when its batteries go flat during a trip to see Tweak's pal, Sandy the leatherback sea turtle.

S1·E39

The Midnight Zone

Oct 27, 2010 · 11 min

While exploring the deepest part of the ocean, the Midnight Zone, the Octonauts discover a strange rock that happens to be home to a new species of worm.

S1·E40

The Mixed-Up Whales

Nov 3, 2010 · 11 min

When the Octonauts clean and repair their ship, the Octopod, the resulting noise causes a nearby blue whale to act in strange and dangerous ways.

S1·E41

The Seahorse Tale

Dec 9, 2010 · 11 min

After a storm, the Octonauts help a female seahorse search for her missing mate. She tells them, to Kwazii's surprise, that the missing male seahorse is about to give birth to baby

S1·E42

The Enemy Anemones

Oct 25, 2010 · 11 min

The Octonauts land on an island for a picnic but must first help some crabs trapped between two warring groups of aggregate anemones. Meanwhile back on the Octopod, a horde of out

S1·E43

The Crafty Cuttlefish

Feb 8, 2011 · 11 min

Captain Barnacles allows Tunip to use his Octo-compass. But when Tunip loses it, a cuttlefish takes it.

S1·E44

The Lost Lemon Shark

Feb 9, 2011 · 11 min

The Octonauts have their hands full as they look after a headstrong young Lemon Shark who's hurt his nose and can't find his way home.

S1·E45

The Baby Dolphin

Dec 17, 2010 · 11 min

When a young dolphin follows Kwazii home, he has to babysit while the other Octonauts search for its mother.

S1·E46

The Scary Spookfish

Jan 24, 2011 · 11 min

The Octonauts try to pull Peso out of an oceanic trench and get some help from a strange looking creature with a see through head: a Spookfish.

S1·E47

The Oarfish

Dec 14, 2010 · 11 min

Dashi snaps a picture of what appears to be a sea serpent, but the truth is stranger than fiction when it turns out to be an awesomely long Oarfish.

S1·E48

The Combtooth Blenny

Dec 15, 2010 · 11 min

When Kwazii and Peso are shipwrecked on a desert island, they encounter a Combtooth Blenny - a fish who walks on land! They enlist him to send an SOS message to the other Octonauts

S1·E49

The Marine Iguanas

Feb 2, 2011 · 11 min

The team are preparing for a feast of red seaweed on the Galapagos Islands but a trio of salt-sneezing marine iguanas raid the Octopod and eat it all!

S1·E50

The Dwarf Lantern Shark

Feb 3, 2011 · 11 min

Down in the darkness of the ocean deep, Peso and the Octonauts must help a tiny, injured Dwarf Lantern Shark.